CN107544084A - Automatic alarm system and method based on high accuracy positioning identification traffic accident - Google Patents
Automatic alarm system and method based on high accuracy positioning identification traffic accident Download PDFInfo
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- CN107544084A CN107544084A CN201710720887.5A CN201710720887A CN107544084A CN 107544084 A CN107544084 A CN 107544084A CN 201710720887 A CN201710720887 A CN 201710720887A CN 107544084 A CN107544084 A CN 107544084A
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Abstract
It is specific as follows the invention provides a kind of automatic alarm system and method based on high accuracy positioning identification traffic accident：1) single-point GPS location is obtained using GPS chip and big-dipper satellite chip.2) RTCM difference is obtained from Ntrip servers, high precision position is obtained using RTD, RTK algorithm.3) by the use of high precision position as the base position of inertial navigation, the high precision position merged using sensing datas such as accelerometer, magnetometer, barometer, gyroscopes.4) map match is done using high precision position, judge current vehicle driving trace, either vehicle location (be such as in outside road or hard shoulder), trigger warning message, ejection whether alarming determining message, if within a certain period of time (such as 30 seconds), message unconfirmed, automatically the warning message with GPS position information is passed into alarm platform, 110 or 120 is passed to by alarm platform.
Description
Technical field
The present invention relates to communication technical field, and in particular to a kind of automatic report based on high accuracy positioning identification traffic accident
Alert system and method.
Background technology
Currently, quickly propelling with urbanization process, the pressure of urban transportation persistently increase.City ITS
Construction and with turn into alleviate traffic congestion, reduce Public Traveling delay Main Means.
The data-detection apparatus species that municipal intelligent traffic includes is more, and every kind of equipment has thousands of individual point positions up to a hundred easily.It is existing
Either the equipment that some equipment fault investigation technologies are directed to is relatively simple, or the method used is more traditional, as traffic police is regular
Inspection or citizen's report.On the one hand not comprehensive enough, the omission of individual plants malfunction elimination of these technologies, such as induced screen, signal
Lamp, trip can be misled to a certain extent or cause traffic congestion；Another aspect real-time is poor, because it is found that caused by evening
Device damage degree penalty issue is virtually also improving transit equipment maintenance cost.
So many equipment each moment is producing mass data in one city, how to make good use of these data, from
In extract useful information, so as to realize that the function of all transit equipment automatic alarms can undoubtedly alleviate above mentioned problem significantly.Mesh
The appearance of the preceding automatic alarm technology for being also not based on high accuracy positioning identification traffic accident.
The content of the invention
In order to solve the problems, such as that prior art is present, the present invention utilizes RTD/RTK (RTK：Carrier phase difference, RTD：It is pseudo-
Away from difference) high accuracy positioning and inertial navigation system, automatic identification traffic accident, the very first time actively sends alarm signal to clothes
Business device, in time rescue.
The technical solution adopted by the present invention is as follows：
A kind of automatic alarm system based on high accuracy positioning identification traffic accident, including it is sensor, navigation chip, high-precision
Spend alignment system and alarm platform；Single locus is obtained by navigation chip；High-accuracy position system obtains RTCM from server
Differential data, high precision position is obtained by algorithm；Base position using high precision position as inertial navigation, utilizes sensor
Data merge to high precision position, the high precision position merged；Map match is done using the high precision position of fusion,
Judge current vehicle driving trace or vehicle location, trigger warning message, ejection whether alarming determining message, if one
Fix time interior message unconfirmed, warning message is passed into alarm platform automatically, 110 or 120 are passed to by alarm platform.
Further, the navigation chip includes GPS chip and Big Dipper chip.
Further, the server is NTRIP servers.
Further, the algorithm includes RTD algorithms or RTK algorithms.
Further, the high precision position precision reaches meter level or Centimeter Level.
Further, the sensor include any one in gyroscope and accelerometer, magnetometer, barometer and with
On.
Further, it is characterised in that the certain time is 30 seconds.
Further, the warning message carries GPS position information.
A kind of automatic alarm method based on high accuracy positioning identification traffic accident, it is characterised in that comprise the following steps：
Single-point GPS location is obtained by GPS chip and Big Dipper chip；
High-accuracy position system obtains RTCM differential datas from server, and high precision position is obtained by RTD, RTK algorithm；
Base position using high precision position as inertial navigation, high precision position is melted using sensing data
Close, the high precision position merged；
Map match is done using the high precision position of fusion, judges current vehicle driving trace or vehicle location, is touched
Send out warning message, ejection whether alarming determining message, if message unconfirmed within a certain period of time, automatically passes to warning message
Alarm platform, 110 or 120 are passed to by alarm platform.
Further, the high precision position precision reaches meter level or Centimeter Level.
The existing device of present invention application is the automatic alarm that traffic accident can be achieved, simple and convenient and cheap.This
Outside, GPS and Big Dipper chip are provided with car-mounted terminal in the present invention, so as to not limited by mobile base station, realized any
The transmission of the alarm signal (positional information) of distance.
Brief description of the drawings
Fig. 1 is the automatic alarm system theory diagram based on high accuracy positioning identification traffic accident.
Embodiment
Fig. 1 is the automatic alarm system theory diagram based on high accuracy positioning identification traffic accident.Hereinafter, with reference to accompanying drawing
The present invention is further elaborated with embodiment：
1) single-point GPS location is obtained using GPS chip and big-dipper satellite chip.
2) from NTRIP, (Networked Transport of RTCM via Internet Protocol, pass through interconnection
Net carries out the agreement of RTCM network transmissions) server acquisition RTCM (Radio Technical Commission for
Maritime services, the international ocean shipping cause radiotechnics committee) differential data, obtain height using RTD, RTK algorithm
Precision position (meter level, Centimeter Level).
3) accelerometer, magnetometer, barometer, top are utilized as the base position of inertial navigation by the use of high precision position
The high precision position that the sensing datas such as spiral shell instrument are merged.Inertial navigation system is one and surveyed using accelerometer and gyroscope
The acceleration and angular speed of object is measured, and the assisting navigation system of moving object position, posture and speed is continuously estimated with calculating
System.
4) map match is done using high precision position, judges that current vehicle driving trace, or vehicle location (are such as in
Outside road or hard shoulder etc.), trigger warning message, ejection whether alarming determining message, if within a certain period of time (such as 30
Second), the warning message with GPS position information is passed to alarm platform by message unconfirmed automatically, and 110 are passed to by alarm platform
Or 120.
The preferred C language of the present invention, C++ and java language.
Although the present invention is disclosed as above with preferred embodiment, it is not for limiting the present invention, any this area
Technical staff without departing from the spirit and scope of the present invention, may be by the methods and technical content of the disclosure above to this hair
Bright technical scheme makes possible variation and modification, therefore, every content without departing from technical solution of the present invention, according to the present invention
Any simple modifications, equivalents, and modifications made to above example of technical spirit, belong to technical solution of the present invention
Protection domain.
Claims (10)
1. a kind of automatic alarm system based on high accuracy positioning identification traffic accident, it is characterised in that including sensor, navigation
Chip, high-accuracy position system and alarm platform；Single locus is obtained by navigation chip；High-accuracy position system is from server
RTCM differential datas are obtained, high precision position is obtained by algorithm；Base position using high precision position as inertial navigation, profit
High precision position is merged with sensing data, the high precision position merged；Done using the high precision position of fusion
Map match, judge current vehicle driving trace or vehicle location, trigger warning message, whether alarming determining disappears for ejection
Breath, if message unconfirmed within a certain period of time, passes to alarm platform by warning message automatically, by alarm platform pass to 110 or
Person 120.
2. a kind of automatic alarm system based on high accuracy positioning identification traffic accident as claimed in claim 1, its feature exist
In the navigation chip includes GPS chip and Big Dipper chip.
3. a kind of automatic alarm system based on high accuracy positioning identification traffic accident as claimed in claim 1, its feature exist
In the server is NTRIP servers.
4. a kind of automatic alarm system based on high accuracy positioning identification traffic accident as claimed in claim 1, its feature exist
In the algorithm includes RTD algorithms or RTK algorithms.
5. a kind of automatic alarm system based on high accuracy positioning identification traffic accident as claimed in claim 1, its feature exist
In the high precision position precision reaches meter level or Centimeter Level.
6. a kind of method for reporting traffic accident and congestion track automatically based on high accuracy positioning as claimed in claim 1, its
Be characterised by, the sensor include any one in gyroscope and accelerometer, magnetometer, barometer and more than.
7. a kind of method for reporting traffic accident and congestion track automatically based on high accuracy positioning as claimed in claim 1, its
It is characterised by, the certain time is 30 seconds.
8. a kind of method for reporting traffic accident and congestion track automatically based on high accuracy positioning as claimed in claim 1, its
It is characterised by, the warning message carries GPS position information.
9. a kind of automatic alarm method based on high accuracy positioning identification traffic accident, it is characterised in that comprise the following steps：
Single-point GPS location is obtained by GPS chip and Big Dipper chip；
High-accuracy position system obtains RTCM differential datas from server, and high precision position is obtained by RTD, RTK algorithm；
Base position using high precision position as inertial navigation, high precision position is merged using sensing data, obtained
To the high precision position of fusion；
Map match is done using the high precision position of fusion, judges current vehicle driving trace or vehicle location, triggering report
Alert information, ejection whether alarming determining message, if message unconfirmed within a certain period of time, passes to alarm by warning message automatically
Platform, 110 or 120 are passed to by alarm platform.
10. a kind of automatic alarm method based on high accuracy positioning identification traffic accident as claimed in claim 9, its feature exist
In the high precision position precision reaches meter level or Centimeter Level.
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| CN201710720887.5A CN107544084A (en) | 2017-08-21 | 2017-08-21 | Automatic alarm system and method based on high accuracy positioning identification traffic accident |
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| CN201710720887.5A CN107544084A (en) | 2017-08-21 | 2017-08-21 | Automatic alarm system and method based on high accuracy positioning identification traffic accident |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108732595A (en) * | 2018-04-12 | 2018-11-02 | 石家庄铁路职业技术学院 | A kind of RTK rover receiver of integrated inertial navigation and magnetometer |
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